From owner-freebsd-stable@FreeBSD.ORG Tue Feb 28 08:22:54 2012 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 84C0E106566C for ; Tue, 28 Feb 2012 08:22:54 +0000 (UTC) (envelope-from peterjeremy@acm.org) Received: from mail14.syd.optusnet.com.au (mail14.syd.optusnet.com.au [211.29.132.195]) by mx1.freebsd.org (Postfix) with ESMTP id EE0218FC14 for ; Tue, 28 Feb 2012 08:22:53 +0000 (UTC) Received: from server.vk2pj.dyndns.org (c220-239-116-103.belrs4.nsw.optusnet.com.au [220.239.116.103]) by mail14.syd.optusnet.com.au (8.13.1/8.13.1) with ESMTP id q1S8MiMv025615 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 28 Feb 2012 19:22:44 +1100 X-Bogosity: Ham, spamicity=0.000000 Received: from server.vk2pj.dyndns.org (localhost.vk2pj.dyndns.org [127.0.0.1]) by server.vk2pj.dyndns.org (8.14.5/8.14.4) with ESMTP id q1S8MiYb063811; Tue, 28 Feb 2012 19:22:44 +1100 (EST) (envelope-from peter@server.vk2pj.dyndns.org) Received: (from peter@localhost) by server.vk2pj.dyndns.org (8.14.5/8.14.4/Submit) id q1S8Mgr5063810; Tue, 28 Feb 2012 19:22:42 +1100 (EST) (envelope-from peter) Date: Tue, 28 Feb 2012 19:22:42 +1100 From: Peter Jeremy To: Freddie Cash Message-ID: <20120228082242.GC62432@server.vk2pj.dyndns.org> References: <4F4B0F83.4090600@norma.perm.ru> <977febd5710ecac8cd9ea374ca0193f4.squirrel@109.169.62.232> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="d6Gm4EdcadzBjdND" Content-Disposition: inline In-Reply-To: X-PGP-Key: http://members.optusnet.com.au/peterjeremy/pubkey.asc User-Agent: Mutt/1.5.21 (2010-09-15) Cc: "freebsd-stable@freebsd.org" , Nenhum_de_Nos Subject: Re: zfs, 1 gig of RAM and periodic weekly X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 28 Feb 2012 08:22:54 -0000 --d6Gm4EdcadzBjdND Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 2012-Feb-27 14:48:05 -0800, Freddie Cash wrote: >You can get away with 2 GB of RAM, if you spend a lot of time manually >tuning things to prevent kmem exhaustion and prevent ZFS ARC from >starving the rest of the system (especially on the network side of >things). I run a system with ZFS and 2GB RAM (though only 40GB disk) without any major tuning (AFAIR, I've only adjusted vfs.zfs.arc_max). That said, more RAM would be better. >Definitely go with a 64-bit install. Even with less than 4 GB of RAM, >you'll benefit from the large kmem size and better auto-tuning. I'd strongly recommend against running ZFS on i386 as anything other than an experiment. --=20 Peter Jeremy --d6Gm4EdcadzBjdND Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (FreeBSD) iEYEARECAAYFAk9MjtIACgkQ/opHv/APuIcJOwCePTlCTPdUmnSSmVPJPAlzcJYN 0xwAn0AVrIp6etH/fNzxQHmALZdxYUd+ =/L4X -----END PGP SIGNATURE----- --d6Gm4EdcadzBjdND--